51174340 has 24 divisors (see below), whose sum is σ = 122818752. Its totient is φ = 17545440.

The previous prime is 51174329. The next prime is 51174341. The reversal of 51174340 is 4347115.

51174340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51174341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182626 + ... + 182905.

It is an arithmetic number, because the mean of its divisors is an integer number (5117448).

Almost surely, 2^51174340 is an apocalyptic number.

It is an amenable number.

51174340 is an abundant number, since it is smaller than the sum of its proper divisors (71644412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51174340 is a wasteful number, since it uses less digits than its factorization.

51174340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365547 (or 365545 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 51174340 is about 7153.6242562774. The cubic root of 51174340 is about 371.2650634223.

It can be divided in two parts, 5117 and 4340, that multiplied together give a triangular number (22207780 = T₆₆₆₄).

The spelling of 51174340 in words is "fifty-one million, one hundred seventy-four thousand, three hundred forty".